<template>
  <div>
    <el-card class="box-card">
      <div slot="header" class="clearfix">
        <span>文章列表</span>
      </div>
      <!-- 搜索区域 -->
      <div class="search-box">
        <el-form :inline="true" :model="q">
          <el-form-item label="文章分类">
            <el-select v-model="q.cate_id" placeholder="请选择分类" size="small">
              <el-option :label="item.cate_name" :value="item.id" v-for="item in cateList" :key="item.id"></el-option>
            </el-select>
          </el-form-item>
          <el-form-item label="发布状态" style="margin-left: 15px;">
            <el-select v-model="q.state" placeholder="请选择状态" size="small">
              <el-option label="已发布" value="已发布"></el-option>
              <el-option label="草稿" value="草稿"></el-option>
            </el-select>
          </el-form-item>
          <el-form-item>
            <el-button type="primary" size="small" @click="initArtList">筛选</el-button>
            <el-button type="info" size="small" @click="resetForm">重置</el-button>
          </el-form-item>
        </el-form>
        <!-- 发表文章的按钮 -->
        <el-button type="primary" size="small" class="btn-pub" @click="pubVisible = true">发表文章</el-button>
      </div>

      <!-- 文章表格区域 -->
       <el-table
        border
        stripe
        :data="artList"
        style="width: 100%">
        <el-table-column
          label="文章标题"
          v-slot = '{row}'
          >
          <template>
            <el-link type='primary' @click="showDetail(row.id)">
               {{ row.title }}
            </el-link>

          </template>
        </el-table-column>
        <el-table-column
          prop="cate_name"
          label="文章分类">
        </el-table-column>
        <el-table-column
          label="发表时间">
          <template v-slot='{ row }'>
           {{ formData(row.pub_date) }}
          </template>
        </el-table-column>
         <el-table-column
          prop="state"
          label="状态">
        </el-table-column>
          <el-table-column
            label="操作">
        <template v-slot='{ row }'>
            <el-button type="danger" size="mini" @click="removeDatail(row.id)">删除</el-button>
        </template>
          </el-table-column>

      </el-table>

      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="q.pagenum"
        :page-sizes="[2, 3, 5, 20]"
        :page-size="q.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>
    <!-- 添加文章 -->
    <el-dialog
      fullscreen
      title="发表文章"
      :visible.sync="pubVisible"
      :before-close="handleClose">
      <!-- 发布文章的对话框 -->
      <el-form :model="pubForm" :rules="pubFormRules" ref="pubForm" label-width="100px" >
        <el-form-item label="文章标题" prop="title">
          <el-input v-model="pubForm.title" placeholder="请输入标题"></el-input>
        </el-form-item>
        <el-form-item label="文章分类" prop="cate_id">
          <el-select v-model="pubForm.cate_id" placeholder="请选择分类" style="width: 100%;">
            <el-option v-for="item in cateList" :key="item.id" :label="item.cate_name" :value="item.id"></el-option>
          </el-select>
        </el-form-item>
        <el-form-item label="文章内容" prop="content">
  <!-- 使用 v-model 进行双向的数据绑定 -->
          <quill-editor v-model="pubForm.content" @blur="$refs.pubForm.validateField('content')"></quill-editor>
        </el-form-item>
        <el-form-item label="文章封面" prop="cover_img">
          <!-- 用来显示封面的图片 -->
          <img v-if="preview" :src="preview" alt="" class="cover-img" ref="imgRef" />
          <img v-else src="../../../assets/images/cover.jpg" alt="" class="cover-img" ref="imgRef" />
          <br />
          <!-- 文件选择框，默认被隐藏 -->
          <input type="file" style="display: none;" accept="image/*" ref="iptFile" @change="coverChange" />
          <!-- 选择封面的按钮 -->
          <el-button type="text" @click="$refs.iptFile.click()">+ 选择封面</el-button>
        </el-form-item>
          <el-form-item>

          <el-button type="primary" @click="pubArticle('已发布')">发布</el-button>
          <el-button type="info" @click="pubArticle('草稿')">存为草稿</el-button>
          </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
      </span>
    </el-dialog>
    <!-- 文件预览 -->
    <el-dialog
      title="文件预览"
      :visible.sync="datailDialogVisible"
      width="70%"
      >
        <h1 class="title">{{ artDetail.title }}</h1>

        <div class="info">
          <span>作者：{{ artDetail.nickname || artDetail.username }}</span>
          <span>发布时间：{{ formData(artDetail.pub_date) }}</span>
          <span>所属分类：{{ artDetail.cate_name }}</span>
          <span>状态：{{ artDetail.state }}</span>
        </div>

        <!-- 分割线 -->
        <el-divider></el-divider>

        <!-- 文章的封面 -->
        <img :src="'http://www.liulongbin.top:3008' + artDetail.cover_img" alt="" />

        <!-- 文章的详情 -->
        <div v-html="artDetail.content" class="detail-box"></div>
    </el-dialog>
  </div>
</template>

<script>
import dayjs from 'dayjs'
export default {
  name: 'ArtList',
  data() {
    return {
      datailDialogVisible: false,
      artDetail: {},
      total: 0,
      currentPage4: 4,
      cateList: [],
      artList: [],
      preview: '',

      // 查询参数对象
      q: {
        pagenum: 1,
        pagesize: 2,
        cate_id: '',
        state: ''
      },
      pubVisible: false,
      pubForm: {
        title: '',
        cate_id: '',
        content: '',
        cover_img: '',
        state: ''
      },
      pubFormRules: {
        title: [
          { required: true, message: '请输入文章标题', trigger: 'blur' },
          { min: 1, max: 30, message: '文章标题的长度为1-30个字符', trigger: 'blur' }
        ],
        cate_id: [
          { required: true, message: '请选择文章标题', trigger: 'change' }
        ],
        content: [
          { required: true, message: '请输入文章内容', trigger: 'blur' }
        ],
        cover_img: [
          { required: true, message: '请选择你的封面图片', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 实现删除功能
    removeDatail(id) {
      this.$confirm('此操作将永久删除该文件, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(async() => {
        // 点击了确定
        const { data: res } = await this.$http.delete('/my/article/info', {
          params: {
            id
          }
        })
        // console.log(res)
        if (res.code !== 0) return this.$message.error(res.message)
        this.$message.success(res.message)
        if (this.artList.length === 1 && this.q.pagenum > 1) {
          this.q.pagenum--
        }
        this.initArtList()
      }).catch(() => {
        // 点击了取消
      })
    },
    async showDetail(id) {
      const { data: res } = await this.$http.get('/my/article/info', {
        params: {
          id
        }
      })
      // console.log(res)
      this.artDetail = res.data
      this.datailDialogVisible = true
    },
    resetForm() {
      this.q = {
        pagenum: 1,
        pagesize: 2,
        cate_id: '',
        state: ''
      }
      this.initArtList()
    },
    handleSizeChange(val) {
      this.q.pagesize = val
      this.q.pagenum = 1
      this.initArtList()
      // console.log(`每页 ${val} 条`)
    },
    handleCurrentChange(val) {
      this.q.pagenum = val
      this.initArtList()
      // console.log(`当前页: ${val}`)
    },
    handleClose(done) {
      // console.log(1)
      this.$confirm('此操作会导致文章内容丢失，是否继续？', '提示', {
        type: 'warning'
      })
        .then(_ => {
          done()
        })
        .catch(_ => {})
    },
    async initCateList() {
      const { data: res } = await this.$http.get('/my/cate/list')
      // console.log(res)
      if (res.code === 0) {
        this.cateList = res.data
        // console.log(this.cateList)
      }
    },
    coverChange(e) {
      const file = e.target.files[0]
      if (file) {
        this.pubForm.cover_img = file
        const str = URL.createObjectURL(file)
        // console.log(str)
        this.preview = str
        this.$refs.pubForm.validateField('cover_img')
      } else {
        this.pubForm.cover_img = ''
        this.preview = ''
      }
    },
    pubArticle(state) {
      // console.log(state)
      this.pubForm.state = state
      this.$refs.pubForm.validate(async valid => {
        if (!valid) return
        // console.log(valid)
        const fd = new FormData()
        // fd.append('title', this.pubForm.title)
        // fd.append('cate_id', this.pubForm.cate_id)
        // fd.append('content', this.pubForm.content)
        // fd.append('cover_img', this.pubForm.cover_img)
        // fd.append('state', this.pubForm.state)
        // for (const k in this.pubForm) {
        //   console.log(k)
        //   fd.append(k, this.pubForm[k])
        // }

        Object.keys(this.pubForm).forEach(item => fd.append(item, this.pubForm[item]))
        const { data: res } = await this.$http.post('/my/article/add', fd)
        if (res.code !== 0) return this.$message.error(res.message)
        this.$message.success(res.message)
        this.pubVisible = false
        this.$refs.pubForm.resetFields()
      })
    },
    async initArtList() {
      const { data: res } = await this.$http.get('/my/article/list', { params: this.q })
      // console.log(res)
      this.artList = res.data
      this.total = res.total
    },
    formData(date) {
      return dayjs(date).format('YYYY-MM-DD HH:mm:ss')
    }
  },
  created() {
    this.initCateList()
    this.initArtList()
  }
}
</script>

<style lang="less" scoped>
.search-box {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  .btn-pub {
    margin-top: 5px;
  }
}
// 设置富文本编辑器的默认最小高度
/deep/ .ql-editor {
  min-height: 300px;
}

// 设置图片封面的宽高
.cover-img {
  width: 400px;
  height: 280px;
  object-fit: cover;
}
</style>
